UL 1416-1999 UL Standard for Safety Overcurrent and Overtemperature Protectors for Radio- and Television- Type Appliances (Sixth Edition Reprint with Revisions Through and Includin.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1416 Overcurrent and Overtemperature Protectors for Radio- and Television- Type AppliancesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION F

2、ROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Overcurrent and Overtemperature Protectors for Radio- and Television- Type Appliances, UL 1416 Sixth Edition, Dated October 29, 1999 SUMMARY OF TOPICS These rev

3、isions include a revised title page to reect the ANSI approval of the current edition of UL 1416. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the marg

4、in and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated August 17, 2012. The UL Foreword is no longer locat

5、ed within the UL Standard. For information concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: http:/ All rights reserved. No part of this publication may be reproduced, stored in a retrieval s

6、ystem, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantabil

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10、 effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the

11、Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. OCTOBER 12, 2012 UL 1416 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 12, 2012 UL 1416 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER R

12、EPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 29, 1999 (Title Page Reprinted: October 12, 2012) 1 UL 1416 Standard for Overcurrent and Overtemperature Protectors for Radio- and Television- Type Appliances The First edition was titled Standard for Overcurrent and Overtemperature Prot

13、ectors for Radio and Television Receiving Appliances and Other Electronic Equipment and numbered UL 492.6. First Edition October, 1974 Second Edition January, 1976 Third Edition December, 1978 Fourth Edition February, 1986 Fifth Edition September, 1994 Sixth Edition October 29, 1999 This ANSI/UL Sta

14、ndard for Safety consists of the Sixth Edition including revisions through October 12, 2012. The most recent designation of ANSI/UL 1416 as an American National Standard (ANSI) occurred on October 12, 2012. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page,

15、or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted

16、 by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2012 UNDERWRITERS LABORATORIES INC. ANSI/UL 1416-2012UL CO

17、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 21, 2006 UL 1416 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Glossary .7

18、 3 Components 8 4 Units of Measurement .8 5 References .8 CONSTRUCTION 6 General 8 7 Live Parts .8A 8 Insulating Material .9 9 Corrosion Protection .9 10 Mounting 9 11 Bushings 9 12 Spacings 10 12.1 General .10 12.2 Barriers .10 13 Flammability Classication of Materials 10 PERFORMANCE ALL PROTECTORS

19、 14 General 11 15 Hot-Wire Ignition Test .11 16 Arc Resistance Test .11 16.1 General .11 16.2 Low-voltage arcing test .11 17 Resistance to Moisture Test 11 18 Strain Relief of Leads and Connectors Test 12 19 Torque Test 12 MULTIPLE-OPERATION, MANUAL-RESET OVERTEMPERATURE PROTECTORS 20 Calibration Ve

20、rication .12 21 Endurance Test 12 22 Calibration Reverication 14 23 Limited Short-Circuit Test 14 24 Dielectric Voltage-Withstand Test .15 25 Positive Opening Test .15 26 Overload Test 15 MARCH 21, 2006 UL 1416 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT

21、PERMISSION FROM UL MULTIPLE-OPERATION, SELF-RESETTING OVERTEMPERATURE PROTECTORS 27 Calibration Verication .16 28 Endurance Test 16 29 Calibration Reverication 16 30 Limited Short-Circuit Test 16 31 Dielectric Voltage-Withstand Test .17 32 Positive Opening Test .18 33 Overload Test 18 TWO-TERMINAL,

22、MANUAL-RESET OVERCURRENT PROTECTORS 34 General 18 35 Calibration Verication and Calibration Reverication 18 36 Overload Test 19 37 Dielectric Voltage-Withstand Test .19 38 Positive Opening Test .20 39 Limited Short-Circuit Test 20 TWO-TERMINAL, SELF-RESETTING OVERCURRENT PROTECTORS 40 General 21 41

23、Calibration Verication and Calibration Reverication 21 42 Overload Test 22 43 Dielectric Voltage-Withstand Test .22 44 Positive Opening Test .23 45 Limited Short-Circuit Test 23 THREE- OR MORE-TERMINAL (TWO-OR MORE-ELEMENT) OVERCURRENT PROTECTORS 46 General 24 MULTIPLE-FUNCTION PROTECTORS 47 General

24、 25 MANUFACTURING AND PRODUCTION TESTS 48 General 25 49 Production-Line Dielectric Voltage-Withstand Test 25 RATING 50 Details .26 MARKING 51 Details .26 Appendix A Standards for ComponentsA1 OCTOBER 29, 1999 UL 1416 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WI

25、THOUT PERMISSION FROM UL OCTOBER 29, 1999 UL 1416 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. MARCH 21, 2006 UL 1416 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI

26、ON OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements apply to overtemperature protectors, and overcurrent protectors to be employed in radio- and television-type appliances in applications where the protectors are relied upon to limit power, current, or both and

27、where the equipment is to be supplied by a maximum 20 A branch circuit. Compliance with these requirements is not to be regarded as indication that an overcurrent or overtemperature protector would be acceptable in the end-use product. 1.2 The acceptability of any protector covered by these requirem

28、ents in any particular component, device, or appliance depends upon the conditions of continued use that prevail in actual service. Accordingly, for a particular application, the protector may be affected by the requirements for the component, device, or appliance in question, and it may be necessar

29、y to employ protective devices having features other than or in addition to those specied in these requirements. 1.3 These requirements do not apply to thermal cutoffs (single-operation meltable-type overtemperature devices). Thermal cutoffs are covered in the Standard for Thermal-Links Requirements

30、 and Application Guide, UL 60691. 1.3 revised March 21, 2006 1.4 Deleted January 21, 2004 2 Glossary 2.1 OVERCURRENT PROTECTOR A device that: a) Is intended for free standing use, b) Is current sensitive, and c) Is intended to be reset or is self-resetting following operation. Operation is the inter

31、rupting of a circuit(s) when the current owing through it exceeds a preselected value. 2.2 OVERTEMPERATURE PROTECTOR A device intended for freestanding use or for installation in components and that interrupts a current ow when it attains a predetermined temperature. It may be resettable or self-res

32、etting following operation but shall not be of the single-operation type. MARCH 21, 2006 UL 1416 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Components 3.1 Except as indicated in 3.2, a component of a product covered by this Standard

33、shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this Standard. 3.1 added October 29, 1999 3.2 A component is not required to comply with a specic requirement that: a) Involves a feature or cha

34、racteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 3.3 A component shall be used in accordance with its rating established for the intended conditions of use. 3.3 added October 29, 1999 3.4 Spec

35、ic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3.4 added October 29,

36、1999 4 Units of Measurement 4.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 5 References Section 5 added October 29, 1999 5.1 Any undated reference to a code or standard appearing in the requirements of this standard shall

37、be interpreted as referring to the latest edition of that code or standard. CONSTRUCTION 6 General 6.1 Each protector shall be complete and shall include a means for connection. 6.2 Each manually operated reset protector shall be trip-free; that is, the automatic tripping shall be independent of the

38、 manipulation or position of the reset button, handle, lever, and the like. 6.3 6.2 does not preclude the acceptance of a protector in which the contacts return automatically to the closed position after acceptable operating conditions have been restored if the reset button, handle, lever, and the l

39、ike is held in the reset position. JANUARY 21, 2004 UL 1416 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7 Live Parts 7.1 Current-carrying parts shall be manufactured of materials that are capable of meeting the operating conditions of t

40、he particular application (for example, with respect to mechanical strength and ampacity). 7.2 Uninsulated live parts, including terminals, shall be secured to their supporting surfaces by methods other than friction between surfaces so that they are kept from turning or shifting in position if such

41、 motion may result in reduction of spacings to less than those required elsewhere in this standard. The security of contact assemblies that open in service shall be such as to maintain the continued alignment of contacts. A positive keying arrangement or the equivalent is required for maintenance of

42、 contact assembly alignment. JANUARY 21, 2004 UL 1416 8AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 21, 2004 UL 1416 8B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT P

43、ERMISSION FROM UL 8 Insulating Material 8.1 A base for the support of current-carrying parts shall be insulating material that is able to withstand the conditions of actual service. Strength, ammability, arc resistance, moisture resistance, and resistance to hot-wire ignition are among the character

44、istics that shall be considered. 8.2 Insulating material, including barriers between parts of different potential and material that may be subject to the inuence of the arc formed by the opening of the interruption mechanism, shall be capable of meeting the operating conditions for the particular ap

45、plication. Among things that shall be considered are ammability and performance under the overload and limited short-circuit tests, and the arc-, moisture, and hot-wire-, ignition tests described in Sections 13 and 15 17. 9 Corrosion Protection 9.1 Iron and steel parts shall be protected against cor

46、rosion by enameling, galvanizing, cementation, plating, or other equivalent means. Exception: Corrosion protection shall not be provided when it is detrimental to the operation. 9.2 9.1 applies to all enclosing cases and to other parts upon which acceptable mechanical operation may depend. It does n

47、ot apply to small minor parts of iron or steel, such as washers, screws, bolts, and the like that are not current-carrying, if the deterioration of such unprotected parts is not likely to result in a risk of re or electric shock or inability of the device to operate, but the protection of all such p

48、arts is recommended. Parts made of stainless steel (polished or treated if necessary) do not require additional protection against corrosion. 10 Mounting 10.1 Performance of a protector shall not be affected by strain, pressure, or torsion on terminals or leads. Bolts, screws, or other parts used fo

49、r mounting a protector shall be independent of those used for securing parts of the assembly (in other words, the mounting means shall not be the assembly means). 11 Bushings 11.1 Any opening in a nonmetallic compartment wall for lead passage shall be smooth and free of sharp edges that may damage the wire. 11.2 If conductors pass through an opening in a sheet-metal wall that is 0.042 inch (1.07 mm) or less thick, they shall be held away from the edg